The afternoon storms prompted the California Highway Patrol to hold up traffic on Interstate 80 in the northern Sierra Nevada. Cars coming down the steep, curving path from the 7,000-foot Donner Summit were spinning out on fresh snow and colliding.

“We probably have 10 (spinouts) going on right now,” said California Highway Patrol Officer Marc Peachey in Truckee, although there were no major injuries.

Traffic was snarled as snowplows were called and crews worked to clear accident scenes.

“We’ve got a lot of calls from people sitting in it. They’ve been there for a couple of hours,” Peachey said.

The snow wasn’t unusual, he said.

“We’re pretty high up here,” he said. “It snows every month of the year in Truckee.”

No injuries were reported. By Friday night, about 13 inches of snow had fallen at the nearby town of Kingvale, the National Weather Service said.

Lightning and winds gusting to 35 mph hit areas around Sacramento and hail “the size of dimes” was reported a few miles from the unincorporated community of Sheridan, said Travis Wilson, a meteorologist with the weather service in Sacramento.

Weather concerns prompted officials to cancel a Friday evening concert at a plaza in downtown Sacramento.

Further south in Fairfield, winds drove a grass fire that quickly spread to three homes and prompted authorities to evacuate another 10 homes, police Sgt. Matt Bloesch said.

Gusty winds also delayed some arriving flights by up to 90 minutes at San Francisco International Airport.

The storms weren’t expected to drop much rain and probably less than an inch of snow even at higher altitudes, forecasters said.

The storms were expected to diminish at night but could resume Saturday afternoon as sun-heated, rising air meets a trough of cooler air, forecasters said.